Time Calculator Simple app for iPhone and iPad

1.Overview
This application calculates the duration from the start time and finish date, and calculates the finish time from the start date and duration.

2.How to use
- Calculate the duration
* After the start time and finish time are entered, the duration is displayed with hours, minutes, and seconds.
- Calculate the finish time
* After the start time and duration are entered, the finish time is displayed.
* The duration can be entered up to 99 hours, 9,999 minutes, and 99,999 seconds.
- If Duration is selected, the duration is calculated, and Date is selected, the finish time calculated.
- The software keyboard can be closed by swiping the screen to left or right.